---
product_id: 462744471
title: "Diameter 114 mm Focal Length 900mm Newtonian Reflector Mirror for Astronomical"
brand: "skyoptikst"
price: "VT15982"
currency: VUV
in_stock: true
reviews_count: 8
category: "Skyoptikst"
url: https://www.desertcart.vu/products/462744471-diameter-114-mm-focal-length-900mm-newtonian-reflector-mirror-astronomical
store_origin: VU
region: Vanuatu
---

# 92% reflectance with enhanced coating 114mm aperture for crisp views 900mm focal length for deep space clarity Diameter 114 mm Focal Length 900mm Newtonian Reflector Mirror for Astronomical

**Brand:** skyoptikst
**Price:** VT15982
**Availability:** ✅ In Stock

## Summary

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## Quick Answers

- **What is this?** Diameter 114 mm Focal Length 900mm Newtonian Reflector Mirror for Astronomical by skyoptikst
- **How much does it cost?** VT15982 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vu](https://www.desertcart.vu/products/462744471-diameter-114-mm-focal-length-900mm-newtonian-reflector-mirror-astronomical)

## Best For

- skyoptikst enthusiasts

## Why This Product

- Trusted skyoptikst brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Deep Space Ready:** 900mm focal length ensures impressive magnification for planetary and lunar observation.
- • **DIY Enthusiast’s Dream:** Perfect for custom Newtonian telescope builds—join the maker movement and craft your own cosmic gateway.
- • **High Reflectivity Coating:** Enhanced aluminum coating boosts light reflectance up to 92%, revealing faint stars and nebulae.
- • **Precision Optics for Stellar Clarity:** 114mm diameter mirror delivers sharp, detailed celestial images.
- • **Trusted Quality at an Unbeatable Price:** Top-rated with 4.8 stars, this mirror offers professional-grade performance without breaking the bank.

## Overview

The Skyoptikst 114mm Newtonian Reflector Mirror features a 900mm focal length and a high-precision 1/10 λ surface accuracy. Its enhanced aluminum coating provides 92% reflectance across 400-950nm wavelengths, delivering bright, sharp views of celestial objects. Ideal for DIY telescope projects, this mirror combines professional optical quality with affordability, making it a favorite among astronomy enthusiasts and makers alike.

## Description

desertcart.com : Skyoptikst Diameter 114 mm Focal Length 900mm Newtonian Reflector Mirror for Astronomical : Electronics

Review: Great for DIY Newtonian telescopes - Perfect for a fun project telescope. I bought 3 of these sets, one for my Dad, one for my youngest son, and one for myself. We used them in 114mm Hadley telescopes that we 3D printed the majority of the parts for. We have really enjoyed the views that these inexpensive mirrors have provided of the moon, and our planetary neighbors.
Review: The Real Deal - Very good sphere for 30 bucks - I had a bad experience with a different desertcart seller- the ronchi test showed severe zones in the sphere, some of the worst I've ever seen. This mirror is great, with only slight undercorrection and some TDE at the edge- this is time consuming to remove and largely doesn't affect the view, and can easily be masked. In some cases, like this one, it may even be beneficial to have a slight bit of TDE (but it gets complicated). Overall this is a great buy for 30 dollars. Attached is my outside ROC ronchi test of this mirror, Blue, and a perfect ronchi test, black and white. You can be confident in this purchase.

## Features

- Caliber: 114mm, Focal length: 900mm
- Surface accuracy： 1/10 λ
- Enhanced aluminum and protective coating
- Reflectance at: 92% / 400-950nm
- Major axis of secondary mirror: 35mm , minor axis: 25mm

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B096F28YR6 |
| Best Sellers Rank | #467 in Camera & Photo Products ( See Top 100 in Camera & Photo Products ) #11 in Telescope Reflectors |
| Brand | Skyoptikst |
| Built-In Media | a Primary mirror ,a Secondary mirror |
| Coating | Enhanced aluminum and protective coating |
| Compatible Devices | Camera |
| Customer Reviews | 4.8 out of 5 stars 53 Reviews |
| Exit Pupil Diameter | 0.13 Millimeters |
| Eye Piece Lens Description | Kellner or Plossl |
| Field Of View | 1.75 Degrees |
| Finderscope | Reflex |
| Focal Length Description | 900 millimeters |
| Focus Type | Manual Focus |
| Item Dimensions D x W x H | 8.66"D x 5.9"W x 1.96"H |
| Item Height | 1 centimeters |
| Item Weight | 0.4 Kilograms |
| Manufacturer | Skyoptikst |
| Model Name | D114F900JP-FBA |
| Mount | Altazimuth Mount |
| Objective Lens Diameter | 114 Millimeters |
| Power Source | Battery Powered |
| Product Dimensions | 8.66"D x 5.9"W x 1.96"H |
| Telescope Mount Description | Altazimuth Mount |
| UPC | 738086032775 |
| Warranty Description | 1 |
| Zoom Ratio | 171 |

## Product Details

- **Brand:** Skyoptikst
- **Eye Piece Lens Description:** Kellner or Plossl
- **Finderscope:** Reflex
- **Focus Type:** Manual Focus
- **Item Weight:** 0.4 Kilograms
- **Model Name:** D114F900JP-FBA
- **Objective Lens Diameter:** 114 Millimeters
- **Power Source:** Battery Powered
- **Product Dimensions:** 8.66"D x 5.9"W x 1.96"H
- **Telescope Mount Description:** Altazimuth Mount

## Images

![Diameter 114 mm Focal Length 900mm Newtonian Reflector Mirror for Astronomical - Image 1](https://m.media-amazon.com/images/I/51HM8wL9NzS.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great for DIY Newtonian telescopes
*by J***D on November 1, 2025*

Perfect for a fun project telescope. I bought 3 of these sets, one for my Dad, one for my youngest son, and one for myself. We used them in 114mm Hadley telescopes that we 3D printed the majority of the parts for. We have really enjoyed the views that these inexpensive mirrors have provided of the moon, and our planetary neighbors.

### ⭐⭐⭐⭐⭐ The Real Deal - Very good sphere for 30 bucks
*by M***R on January 17, 2024*

I had a bad experience with a different amazon seller- the ronchi test showed severe zones in the sphere, some of the worst I've ever seen. This mirror is great, with only slight undercorrection and some TDE at the edge- this is time consuming to remove and largely doesn't affect the view, and can easily be masked. In some cases, like this one, it may even be beneficial to have a slight bit of TDE (but it gets complicated). Overall this is a great buy for 30 dollars. Attached is my outside ROC ronchi test of this mirror, Blue, and a perfect ronchi test, black and white. You can be confident in this purchase.

### ⭐⭐⭐⭐⭐ Perfect for telescopes
*by E***Z on March 25, 2025*

The mirrors showed up perfect and worked great on my diy telescope, I even ordered a second set!

## Frequently Bought Together

- SKYOPTIKST D114F900 Newtonian Reflector telescoe Mirror，DIY 114/900 Astronomical Telescopes
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**Shop now:** [https://www.desertcart.vu/products/462744471-diameter-114-mm-focal-length-900mm-newtonian-reflector-mirror-astronomical](https://www.desertcart.vu/products/462744471-diameter-114-mm-focal-length-900mm-newtonian-reflector-mirror-astronomical)

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*Product available on Desertcart Vanuatu*
*Store origin: VU*
*Last updated: 2026-02-05*